Uh... But it isn't very frequent? Weren't the Equestrians and the LCF/AIF/EA actually the only ones who used it? Everyone else seemed to use their own language. Right now only 3 of the eight or so factions speak it as a primary I believe... And of those 3, one is a fringe chaos group and another is a fledgling, primitive nation. And those factions only have a small part of the galactic population. Its not very standard when only a handful use it :p